According to his doctors, right after the leadless pacemaker was non-surgically implanted directly into his heart's chamber, Gregory's pulse successfully increased to a more healthy 60 beats per minute.

"I am excited, my pulse is now in the 60s, and I am excited since everyone wants to live longer," says Gregory. "I am looking forward to follow-up in 10 years, and thankful the Mount Sinai Hospital has helped me. This new pacemaker is good news, and I would recommend the technology to anybody in need. My pulse was about 43 and now it's 60 plus. It's a miracle. I thought the U.S. would be first to use this technology, but Europe is already doing it."

Gregory and his family are hoping the new pacemaker will make him feel better daily.